Vegemite

The Aussies have a peculiar likening for a spread from
Kraft called Vegemite. Launched in 1923, as a nutritious
paste made from the yeast extract left over from
the manufacture of beer, it is wildly popular and sales
are over 22 million jars a year. The product is banned
from importation to the United States because it contains
folate which is only permitted by the FDA in
breads and cereals. Expatriates have been able to
bring a few jars into the country for personal use, but
not without much consternation created by border
agents who inquisitively inspect it.